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Matching at one loop for the four-quark operators in NRQCD

Physical Review D - Particles, Fields, Gravitation and Cosmology (1998) 58(11)
DOI: 10.1103/PhysRevD.58.114011
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Abstract

The matching coefficients for the four-quark operators in NRQCD (NRQED) are calculated at one loop using dimensional regularization for ultraviolet and infrared divergences. The matching for the electromagnetic current follows easily from our results. Both the unequal and equal mass cases are considered. The role played by the Coulomb infrared singularities is explained in detail. © 1998 The American Physical Society.

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APA

Pineda, A., & Soto, J. (1998). Matching at one loop for the four-quark operators in NRQCD. Physical Review D - Particles, Fields, Gravitation and Cosmology, 58(11). https://doi.org/10.1103/PhysRevD.58.114011

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